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Fangrui Song a815424cc5 Reland D119909 [ELF] Parallelize initializeLocalSymbols 
ObjFile::parse combines symbol initialization and resolution. Many tasks
unrelated to symbol resolution can be postponed and parallelized. This patch
extracts local symbol initialization and parallelizes it.

Technically the new function initializeLocalSymbols can be merged into
ObjFile::postParse, but functions like getSrcMsg may access the
uninitialized (all nullptr) local part of InputFile::symbols.

Linking chrome: 1.02x as fast with glibc malloc, 1.04x as fast with mimalloc

Depends on f456c3ae3f and D119908

Reviewed By: ikudrin

Differential Revision: https://reviews.llvm.org/D119909
2022-03-04 19:00:10 -08:00
..
cmake/modules
COFF [LLD] [COFF] Order .debug_* sections at the end, to avoid leaving gaps if stripped 2022-03-03 10:08:51 +02:00
Common [lld] Make error handling functions opaque 2022-02-17 11:54:57 -08:00
docs [ELF] Support (TYPE=<value>) to customize the output section type 2022-02-17 12:10:58 -08:00
ELF Reland D119909 [ELF] Parallelize initializeLocalSymbols 2022-03-04 19:00:10 -08:00
include/lld [lld] Make error handling functions opaque 2022-02-17 11:54:57 -08:00
MachO [lld-macho] Have relocation address included in range-check error message 2022-02-28 21:56:38 -05:00
MinGW
test [ELF] Move addWrappedSymbols before postParseObjectFile 2022-03-04 18:56:37 -08:00
tools/lld [LLD] Fix issue in HIP due to unspecified order of evaluation of the function object 2022-02-08 19:12:15 -05:00
utils
wasm [lld][WebAssembly] Improve error reporting for bad ar archive members 2022-03-01 15:21:53 -08:00
.clang-format
.clang-tidy
.gitignore
CMakeLists.txt [lld] Require C++14 in LLD standalone build 2022-02-22 18:15:29 -05:00
CODE_OWNERS.TXT
LICENSE.TXT
README.md

README.md

LLVM Linker (lld)

This directory and its subdirectories contain source code for the LLVM Linker, a modular cross platform linker which is built as part of the LLVM compiler infrastructure project.

lld is open source software. You may freely distribute it under the terms of the license agreement found in LICENSE.txt.

Benchmarking

In order to make sure various developers can evaluate patches over the same tests, we create a collection of self contained programs.

It is hosted at https://s3-us-west-2.amazonaws.com/linker-tests/lld-speed-test.tar.xz

The current sha256 is 10eec685463d5a8bbf08d77f4ca96282161d396c65bd97dc99dbde644a31610f.